Window sash guide roller



Nov. 30, 1954 W. S. CRUMLIN G WINDOW SASH GUIDE ROLLER Filed June 6,1949 IN VEN TOR. WA 771/5 5. ORUML l/VG AGE/VT United States PatentOffice 2,695,821 Patented Nov. 30, 1954 WINDOW SASH GUIDE ROLLER WayneS. Crumling, San Diego, Calif. I

Application June 6, 1949, Serial No. 97,499

1 Claim. (Cl. 308-6) My invention relates to a window sash guide roller,more particularly for reducing the friction of window sash inconventional window frames, and the objects of my lnventron are:

First, to provide a roller of this class which is very compact andreadily installed in connection with window sash, for reducing thefriction of the sash in a conventional window frame when forcing thesame upwardly or downwardly therein;

Second, to provide a roller of this class which effectively prevents thediagonal binding of window sash in window frames when attempting to movethe same upwardly or downwardly in the windowframes;

Third, to provide a roller of this class having very simple bearingplates, which may be readily and easily connected to window sash withoutconsiderable alteration thereof;

Fourth, to provide a roller of this class having a maximum amount ofbearing area in proportion to the crosssectional area thereof;

Fifth, to provide a roller of this class having a maximum amount ofwindow frame engaging area in proportion to the cross-sectional areathereof;

Sixth, to provide a roller of this class in which the bearing trunnionsthereof are integral with the window frame engaging surface thereof,providing a very strong and durable roller structure; and

Seventh, to provide a window sash guide roller of this class which isvery simple and economical of construction, efficient in operation, andwhich will not readily deteriorate or get out of order.

With these and other objects in view, as will appear hereinafter, myinvention consists of certain novel features of construction,combination and arrangement of parts and portions, and certainmodifications, as will be hereinafter described in detail andparticularly set forth in the appended claims, reference being had tothe accompanying drawings and to the characters of reference thereon,forming a part of this application, in which:

Fig. 1 is a side elevational view of a window frame and sash therein,showing portions of the window frame broken away and in section, andillustrating my sash guide rollers in connection with the sash movablewithin the frame; Fig. 2 is an enlarged side elevational view of my sashguide roller, showing a fragmentary portion of a window sash with whichsaid guide roller is connected; Fig. 3 is an end elevational view of mysash guide roller, shown in connection with a window sash and engaging awindow frame; Fig. 4 is a side elevational view of a modified form of mywindow sash guide roller, showing a portion thereof fragmentarily andillustrating a fragmentary portion of a window sash with which saidguide roller is connected; Fig. 5 is an end elevational view of thestructure, taken from the line 55 of Fig. 4; Fig. 6 is a sideelevational view, showing another modified form of my window sash guideroller, and illustrating a fragmentary portion of the window sash withwhich said guide roller is connected; and Fig. 7 is an end view of thestructure shown in Fig. 6, taken from the line 77 of Fig. 6

Similar characters of reference refer to similar parts and portionsthroughout the several views of the drawings.

The bearing plate 1 and roller 2 constitute the principal parts andportions of my window sash guide roller, as shown in Figs. 1 to 3,inclusive, of the drawings.

The bearing plate 1, as shown in Fig. 2 of the drawings, is asubstantially flat rectangular plate, having a central opening 1atherein, and at opposite ends of this opening 1a are the olfset arcuatebearing portions 1b, 1c, 1d and 1e. The offset bearing portions 1b and1c are integral at each opposite side of the trunnion portions 2a of theroller 2. The bearing portion 1a is also integral at opposite sides ofthe trunnion portions 2a of the roller 2, while the bearing portion 1eterminates at its upper end 1 and is initially formed at substantiallyright angles to the plane of the plate la, so that the trunnions 2a ofthe roller 2 may be inserted in the bearing portions 1b and 1c and intoengagement with the bearing portion 1d, whereupon the bearing portion 12is then formed into position, whereupon the upper end If is in theposition as shown in Fig. 3 of the drawings. It will be noted that thebearing portion 1e is formed at right angles near the locationdesignated 1g, as shown in Fig. 3 of the drawings, preliminary to theinsertion of the roller 2 into the bearing plate 1, all as shown best inFig. 2 of the drawings.

The bearing plate 1 is provided with fixture receiving openings throughwhich nails or screws 1h may be extended into the window sash forholding my sash guide roller thereon.

The operation of my sash guide roller is substantially as follows:

When installed as shown in Figs. 1 and 3 of the drawings, the fourwindow frame bearing corners of the window sash, when moving upwardlyand downwardly in the window frame, are laterally supported by therollers 2, which engage the window frame, designated A, in Figs. 1 and 3of the drawings. Thus, frictional drag of the sash in the frame, andfrictional binding or diagonal seizure of the sash in the frame, iseffectively prevented. It will be here noted that the reduced diameterof the trunnions 2a in proportion to the larger diameter of the middleportion of the roller 2, provides for the rotating action of saidtrunnions 2a in the bearing portions 1b, 1c, 1d and 1e, as hereinbeforedescribed. It is to be noted that each roller 2 operates within a notchB in the edge of the sash A, as shown in Fig. 3 of the drawings, wherebyrotating freedom of the roller 2 is unrestricted.

In the modified structure as shown in Figs. 4 and 5 of the drawings, theparts are designated as follows:

The bearing plates 3, 4, 5 and 6, and the roller 7 comprise theprincipal parts and portions of said modified structure disclosed inFigs. 4 and 5.

The bearing plates 3, 4, 5 and 6 are all substantially identical inshape and general dimensions. Each of these bearing plates is providedwith an offset arcuate bearing portion, substantially semi-circular inform, which is arranged to be positioned in opposed relationship with asimilar offset bearing portion of an adjacent bearing plate for theengagement of one of the trunnions 7a of the roller 7, which issubstantially identical to the roller 2 hereinbefore described. As shownin Fig. 5 of the drawings, the bearing plates 3 and 6 are arranged incontiguous relationship to each other, and the arcuate offset bearingportions 3a and 6a, in opposed relationship to each other, form asubstantially circular bearing in which the trunnion 7a of the roller 7is revolubly mounted. Thus, the bearing for each end of the roller 7, ateach trunnion portion 7a, is constructed by placing two of thesubstantially identical plates together, and these plates are providedwith openings with nails 3b therein, as shown in Fig. 4 of the drawings,in which nails or screws may be used to secure said plates to the windowsash, in a similar manner as hereinbefore described in connection withthe structure disclosed in Figs. 2 and 3 of the drawings.

The operation of the modified structure shown in Figs. 4 and 5 of thedrawings is similar to that as shown in Fig. 2 of the drawings, with theexception that the insertion of the roller 7 is facilitated by directplacement of the bearing portion of the bearing plates over thetrunnions of the roller 7.

The modified structure, as shown in Figs. 6 and 7, is substantiallysimilar to the structure shown in Figs. 2 and 3 of the drawings, andeach of the bearing plates 8 and 9 is similar to the structure of thebearing plate 1, hereinbefore described, including the bearing portions1c and 1b, which are arcuate opposed offset bearing portions. It is tobe noted that the bearing plates 8 and 9 are substantially identical,and inasmuch as they are disconnected from each other, each may bereadily positioned over its respective roller trunnion portion 10a ofthe roller 10, which is substantially identical in construction to theroller 2 hereinbefore described.

Though I have shown and described a particular construction, combinationand arrangement of parts and portions, and certain modifications, I donot wish to be limited to this particular construction, combination andarrangement, but desire to include in the scope of my invention theconstruction, combination and arrangement substantially as set forth inthe appended claim.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

In a window sash guide roller assembly, an elongated roller havingintegral reduced diameter trunnion portions at opposite ends, a pair ofsimilar thin and substantially flat bearing plates, one of said platesbeing disposed at each end of said roller, each of said plates havingintegral therewith a pair of bearing portions aligned transversely ofthe plate and each being substantially semicircular 4 in cross sectionand extending outwardly from opposite sides of the plate to define andconstitute together a bearing for the corresponding trunnion portion.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 563,650 Bromley July 7, 1896 982,870 Range Jan. 31, 19111,099,726 Storm -o June 9, 1914 1,212,992 OBrien Jan. 16, 1917 1,562,523Slappey Nov. 24, 1925 1,654,913 Beemer Jan. 3, 1928 1,844,519 Nev/illFeb. 9, 1932 FOREIGN PATENTS Number Country Date 19,040 Great Britain1914 25,460 Great Britain 1913

